The New, Newer Project: Part Tres...

[njsteve]

I changed the oil the other day since it has been four years and 674 miles since I got the car on Labor Day 2013. I sent a sample off to Blackstone and got the results back. Though they like to have at least 1,000 miles on a sample so it compares with their 1000-mile analysis baseline figures, they can work with anything. The oil was 5W30 Castrol GTX plus a can of STP Oil Treatment.

Looks like everything is good inside the 44 year old engine. As he mentions, the fact that the car is running on 100 octane Low Lead AVGas, it gives a false positive for lead. Here's what the lab guy said when I pressed him for further info:

"Any way, you're curious about the Avgas adding to lead, and it certainly
would. Avgas is labeled as 100 LL, but it's just considered low amounts of
lead compared to old leaded fuels. There's actually a fair amount of lead
in that fuel, which will make lead read high in our analysis, which is
generally harmless. The only problem with lead reading high is that it
masks lead from the bearings. Everything else looks great for your engine
though, so we aren't concerned with bearing wear now. If you have any other
questions or concerns don't hesitate to get in contact with us."